Yes According to the inquiry of official website of Guangdong Ocean University, there is a time limit for Guangdong Ocean University's enterprise WeChat to cancel the leave. If the time limit is exceeded, it means that the vacation has not been completed within the specified time after the vacation. At this time, an orange display will appear on the enterprise WeChat to remind you that the leave is overdue. The campus leave cancellation rule is that you must cancel your leave when you leave school or leave school. After the leave is completed, the whole leave process is over.